A. rico , guapo because i speak spanish
Los árboles están al lado del río.
(I believe that means, The trees are next to the river.)
Gusta- because you are speaking in the yo form, the answer will be found in the layout of conjugations (pronouns) that goes like this. I=yo : Tú= you : El/Ella/Usted= he, she, or it. : Nosotros=we/us : Vosotros= y'all (this is literally what it means I'm not just ps